Airless dispenser for dispensing low doses of liquid...

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 1/34 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2560860

The invention relates to an airless dispenser which is used to dispense low doses of liquid products. The inventive dispenser is characterised in that it consists of: a first part (1) comprising a spray nozzle (10) which is communicated with a network of channels (12) on the wall of an inner truncated-cone-shaped bore (13), and a second part (2) comprising a deformable container (21) which is equipped with a rigid flange (23) for fixing the first part in the aforementioned bore. The outer periphery of the flange comprises an inclined surface (22) which defines a vortex chamber, opposite the above-mentioned network of channels (12), and which, together with the wall of the first part, forms an internal peripheral outlet groove (25). The outlet groove is defined radially by a flexible lip (20) forming an inlet valve which is supported by the first or second part.

Distributeur sans reprise d'air pour faibles doses de produits liquides, caractérisé en ce qu'il comprend une première pièce (1) comportant une buse (10) de pulvérisation qui communique avec un réseau de canaux (12) ménagé localement sur la paroi d'un alésage interne tronconique (13) et une deuxième pièce (2) comportant un réservoir déformable (21) pourvu d'une collerette rigide (23) de fixation dans l'alésage de ladite première pièce, ladite collerette présentant, sur son pourtour extérieur, une face inclinée (22) qui délimite, en regard dudit réseau de canaux (12), une chambre tourbillonnaire et formant, intérieurement avec la paroi de ladite première pièce, une gorge périphérique (25) d'échappement délimitée radialement par une lèvre souple (20) formant clapet d'admission qui est portée par ladite première ou ladite seconde pièce.

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